Vulcanizer



N. M. ANDERSON.

vuLcAmzER.. APPLICATION FILED AUG. 20, I917.

awum ttoz Wen fan JK/nderson JLJW YW3- UNlTlED stares regent orrics.

NEW'IGN ANDERSON. OF VIOBTIEINGTQN, INDIANA, ASSIG'NOB.

M EE-NE ASSIGN- MENTS, T THOMAS BEMIS, $53., THGl /ZAS BEMIS, 53., AND BUTT-I BED/HS, TRUSTEES 0F ANDERSON STEAM VULGANIZER CQMPANY, A REAL TRUST.

VULCANIZER.

Application filed August 20, 1917.

1 0 all whom it may concern:

Be it known that I, NEWTON M. AnnunsoN, a citizen of the United States, and a resident of Worthington, county of Greene,

and State of Indiana, have invented a certain new and useful Vulcanizer; and I do hereby declare that the following is a full, clear, and exact description thereof, reference beinp; had to the accompanyingdrawings, in which like letters refer to like parts. T he object of this invention is to improve the construction and operation of means for vulcanizing rubber tires and the like.

One feature of the invention is the arrangement to provide for a constant circuit or return of the condensation water. The returning condensation water enters the boiler at a point above the water level. T he heating), means is arranged so as to heat the boiler above the water level, and also to heat the return condensation water pipe.

In connection with the foregoing, there is a further feature of the invention consistino; in means for charging the boiler with water, without reducing), the steam pressure therein or in any manner interfering with the operation of the apparatus. T his consists of an initial water charging chamber whir'h is in communication with a steam boiler and is shut off therefrom by a valve. When it is desired to charge the boiler, said valve is closed, said water chamber filled and its inlet closed, and then said valve is opened so that the water therefrom will flow into the boiler and without interfering with the steam pressure of the boiler or the operation of tie apparatus.

Another feature of the invention-consists in the molds being provided with a deflecting partition chamber with a V-shaped projection toward the steam inlet whereby the steam is distributed in opposite directions to said inlets and through the ends of the mold and then to the back of the mold. This promotes the general steam distribution throughout the surface of the mold and in addition to this, to the ends and back thereof, whereby the same will be heated uniformly.

Another feature of the invention consists in means for holding the sand bag in place in the tire while it is being vulcanized. 3 The full nature of the invention will be understood from the accompanying draw Specification. of Letters Eatent.

irat-ented Nov. 23

Serial No. 187,122.

inns and the following descripti claims.

on and right hand side of the apparatus 215 SQQH in Fig. 1, said mold being shown partially 111 central vertical longitudinal sections. Fig. 1 IS a transverse section of the mold on the line l& of Fig. 3.

Fig. 5 is a side elevation of the left hand mold shown in l, with a portion thereof in vertical longitudinal sect1on. Flg.

central 6 is a plan view of said mold. F ig.7 is a section on the line 77 of Fig. 6, transversely of the mold.

T he framework of the apparatus consists of an upper rectangular portion 10 mounted on vertical legs 11 which are braced by a rectangularly disposed brace bar 12 intermediate therein.

(centrally located within said frame there is a furnace casing 13 vertically disposed with a steam boiler 1d centrally located therein and spaced therefrom a in Fig. 1. At the lower end of the CElSlIlQ and below the boiler there is s shown furnace lene burner 15 supplied with gasolene from the tank 16 through the pipe 17 which is.

suitably controlled by a valve.

Ages

burner, either artificial or other gas, an oil burner or other kind of burner can be used. Secured to the water boiler 14 there is a water gage 18.

The molds 20 and 21 are secured to the upper part of the frame at the side Two of these molds are shown but th thereof.

ere may be molds on the other two sides of the frame. The mold 20 has a flat surface. while the mold 21 is segmental, but the form of the molds may be such as desired for the work to be done.

Each mold has a steam chamber 22 therein supplied with steam from the steam boiler passing through the horizontal steam pipe as central with the steam chamber in the mold.

As the steam enters the steam cham her it is distributed to the right handand to the left, or, in other words, to the ends of the mold pref rably by a V-snaped projection 25 on the middle portion of tion or baffle plate 26 located central in the mold. This re plate eaten a partias from one 'in te nner surhce of the the top to the bottom of the mold and almost to the ends of the mold, leaving, however, passes 27 at the ends of the mold to permit the steam to pass to the rear of the ballie alate and heat the rear wall of the mold. lhis promotes the distribution of the steam in the steam chamber, and its further dis tribution is promoted by the petcochs 28 located at the ends of the molds through. which any accumulated air may be removed from the mold, while starting to heat the mold. The condensation water from the mold rturns preferably from the centralv part of the rear portion of the chamber, behind the baffle plate 26, to the steam boiler through the return pipe 30, as shown in Fig. 1. This pipe enters the steam boiler below the top of the water gage 1S and above the desired water level within the apparatus boiler. The arrangement is such, that the flame fro the burner. will pass up through the burner casing 13 around the boiler to a point above the waterlevel and above the pipe 30 so to superhoat the steam and also to superheat the condensation Water as it flows from the mold to the boiler just before it enters the boiler, above the water level. In work of this kind the temperature should be about 307 degrees Fahrenheit and, therefore, it is necessary to supcrheat the steam to a higher temperature than the mere boiling temperature.

For the purpose of charging the steam boiler with water and to do so without interfelting with the operation of the apparatus, there is awater supply chamber 35 at the top of the apparatus in communication with the steam boiler by pipes 36 and 37, said pipes or communication being closed or controlled by a valve 38. Water is introduced intosaid chamber 35 through an openin in the top which is closed by a plug cap WVhen it is desired to introduce nore water into the steam boiler, the valve 88 is closed, the cap 39 removed, thechamber 35 filled with water while the top is open to the atmosphere, the cap 39 replaced, and the valve 38 opened. Thus while the water is being; introduced, communicationwith the, ste m boiler and also the pipe 24 is closed by the valve 38. After the water has been intriducerl in o chamber 35 and cap 89 re pacel'hthen the valve 38 is opened and the wa r w ll then descend by gravity into the b ler 14. r

In opertion the apparatus a sand ban; 4-?) emp oyed or vulcanizing the work outer casn 4 or pneumat c tir s as shown in 175. 3 and t, also for conforming: to the various thicknvsses and shapes of the cas-v in'r to force same to the wa s of the mold. The sand ban is placed in the mold at the t me of liehtinq the burner, and by the time the steam is rt the proper pressure. usually 60 pounds, it has attained a vulcanizing heat of practically the same temperature as the mold, which causes the work done on the inside of the casing to be vulcanized in place, while the mold vulcanizes the work done on the outside of the casing. The sand bag is oblong and substantially circular intermediate its ends, and is pressed into the shape shown in Fig. 4- by the blocks 42, setscrew l3, clevis 4d, and rod 45 at the lower end of the clevis. removable as the rod 455 is removable from the clevis M: and then the clevis can be removed from the mold. The lower surface of these clamping; blocks 42 is preferably This clevis is, therefore,

convex in cross section as shown in Fig. l, a

apparatus is simple in construction, can be easily manipulated and will be efficient in operation. The condensation water will be returned to the steam boiler and tie steam boiler in a novel manner can be recharged with water without stoppinp the apparatus in any way, or inter 'erinrr with the boiler. The steam is well distributed in the mole. and by placing the petcock at a point preferably to the rear of the bafllc plate 26 the air accumulating; at the end of the mold can be then removed. There are extensions or fianqes' 46 at the ends of the molds as shown in Fig. 3, which are cooled by the air and, therefore, prevent the mold from inr; an offset surface on the rubber tire.

The invention claimed is:

1. A vulcanizing apparatus including a s eam boiler having; a heating chamber in the upper portion thereof, means for con fininq a heating medium around'said boiler and the heatingchamber therein a mold having a steam chamber therein, a communication between the steam boiler and the chamber in said mold for supplying the lat er wi h s eam, and a return pipe leading" from tie steam chamber in the mold to the steam boiler.

2. A. vulcaniz ne apparatus including a steam boiler having a heating chamber in the upper portion thereof. a casing surrounding sai d boiler including said heating chamber and snacod from he boiler. means i for conveyinehea hrough he pace be- 3. A vulcanizing apparatus including a steam boiler having a heating chamber in the upper portion thereof, means for conlining a heating medium around said boiler and the heating chamber therein, a mold having a steam chamber therein, a com1 munication between the steam boiler and the chamber in said mold for supplying the latter with steam, and a return pipe leading from the steam chamber in the mold to the steam boiler, said pipe passing through the heating medium before entering said boiler.

4i. A. vulcanizing apparatus including a steam boiler having a heating chamber in the upper portion thereof, a casing surrounding said boiler including said heating chamber and spaced from the boiler, means for conveying heat through the space between said boiler and casing, a mold having a steam chamber therein, a communication between the steam boiler and the chamber in said mold for supplying the latter with steam, and a return pipe leading from the steam chamber in the mold to the heating chamber in the boiler above the water level therein.

5. V ulcanizing apparatus including a steam boiler, a mold having a steam chamber therein, a communication between the steam boiler and the chamber in the mold for supplying the latter with steam, a return pipe leading from the steam chamber in the mold to the steam boiler at a point below the top thereof and above the normal water level therein. for returning the condensation water and a heater for the steam boiler in.

position to heat the return pipe whereby the condensation water is heated before it enters the boiler.

6, Vulcanizing apparatus including a steam boiler, a mold having a steam chamber therein, a communication between the steam boiler and the chamber in the mold for supplying the latter with steam, a return pipe leading from the steam chamber in the mold to the steam boiler at a point below the top thereof and above the normal water level therein for returning the condensation water, and a heater for the steam boiler in position for the heated gases there from to heat the return pipe and the boiler above the water level.

7. Vulcanizing apparatus including a mold having steam chamber therein, means for introducing steam into said chamber at one side of the mold, and a battle plate longitudinally of said mold with a passageway at each end thereof for deflecting the steam to the ends of the mold and to the portion of said chamber behind the baffle plate.

8. Vulcanizing apparatus including a mold having a steam chamber therein, means for introducing steam into said chamber at one side of the middle of the mold, and a baffle plate longitudinally of said mold with a passageway at each end thereof, said plate having a V-shaped rib opposite the steam inlet for deflecting the steam to the ends of the mold and to the portion of the chamber behind the baffle plate.

9. Vulcanizing apparatus including a steam boiler, a mold having a steam chamber therein, a pipe leading from the boiler to the steam chamber, a baffle plate extending longitudinally of the steam chamber with a pass at each end thereof for deflecting the steam to the ends of the mold and into the chamber to the rear of the baffle plate, and a return pipe leading from the chamber at the rear of the baffle plate back to the steam boiler.

10. Vulcanizing apparatus including a steam boiler, a mold having a steam chamber therein, a pipe leading from the upper part of the boiler to the middle of the steam chamber, a baflie plate extending longitudinally of the steam chamber with a pass at each end thereof for deflecting the steam to the ends of the mold and into the chamber to the rear of the battle plate, a return pipe leading from the chamber back to the rear of the battle plate, back to the steam boiler below the upper end thereof, and. a petcoclr at each end of the chamber.

11. Vulcanizing apparatus including a mold with a steam chamber therein, a steam boiler, a pipe leading from the steam boiler to the steam chamber in said mold, a pipe extending up from said steam pipe, a water receiving chamber connected to said pipe, a valve in said pipe, and means for closing the water receiving chamber, substantially as and for the purpose set forth.

12. A vulcanizing apparatus, including a mold with a steam chamber therein, a steam boiler connected with the steam chamber of said mold, a water receiving chamber communicating with said boiler and having an opening to the atmosphere, a valvefor closing the communication between the boiler and water receiving chamber while the water receiving chamber is being filled, and means for closing said opening in said water receiving chamber after the chamber has been filled to prevent the escape of water and steam therefrom after said valve has been opened and to enable the steam pressure of the boiler and gravity to control the passage of water from the receiving chamber to the boiler.

In witness whereof, I have hereunto affixed my signature.

NElVTON M. ANDERSON. 

